There is no master wheel and no master cogs on wheels. The body is a network of networks of networks….like a Swiss watch, with no one and no thing in charge.
Prospective clinical studies attempting to find miracle cures with single nutrients are inane.
So are man-made drugs.
Here is the image to keep in mind, only that in the body the wheels keep going right off the page – every nutrient is a cog and every important structure in the body is a wheel attached to other wheels with thousands of cogs.
The green wheel is bigger than any of the black wheels. This is just like nature, but note that the green wheel is not a behemoth and the black wheels are not pygmies. It is a difference in degree.
As a rule, causal thinking is errant thinking.